# math

### I What does this vector notation mean?

Hello, I'm currently doing vectors in class, but I don't know what these parts mean. Especially φ(a,b). I understand cos(φ), but I don't...
Thread by: Yealtas, Nov 13, 2017, 3 replies, in forum: General Math

### Transforming Piecewise Functions

1. The problem statement, all variables and given/known data The piece wise function is -x-2,...
Thread by: Mjucewitz, Oct 29, 2017, 3 replies, in forum: Precalculus Mathematics Homework

### I How to determine if an asteroid will burn up or hit Earth?

I want to make a interactive simulation that shows whether or not an asteroid will hit the surface of the Earth. It would have 2 sliders for you...
Thread by: justiny92, Oct 26, 2017, 4 replies, in forum: Astronomy and Astrophysics

### Programs CE + Phys or CE + Math: Interested in Quantum Computing & AI

Hey all, I'm a student in university who wants to Double Major in Computer Engineering and Physics or Computer Engineering and Mathematics....
Thread by: Jpmcke, Oct 7, 2017, 2 replies, in forum: Academic Guidance

### Vectors, how to find average acceleration

1. The problem statement, all variables and given/known data At one instant a bicyclist is 20.5 m due south of a park's flagpole, going due east...
Thread by: juju1, Sep 20, 2017, 13 replies, in forum: Introductory Physics Homework

### Electricity: electric field in a point Between Two Charges

1. The problem statement, all variables and given/known data I've seen many books writing the cosine rule like this: a^2 = b^2 + c^2 - 2bc cos A...
Thread by: Epoch, Sep 20, 2017, 4 replies, in forum: Introductory Physics Homework

### B Inequality of absolute values

Hi there, I'm having trouble understanding this math problem: |x| + |x-2| = 2 The answer says its: 0<=x<=2 I understand you need different...
Thread by: blueblast, Sep 4, 2017, 4 replies, in forum: General Math

Hello. I wanted to see how much more efficient a car would be if hydrogen and oxygen (created through electrolysis of water) were injected into...
Thread by: Le Luc, Sep 2, 2017, 4 replies, in forum: Materials and Chemical Engineering

### B How do I solve this Quadratic Equation?

[IMG] Ok so what am I doing wrong, when i try to put equation 300 = (x+3)(x+2)(1) into Stanford form I get x^2 + 5x - 294 = 0.
Thread by: SunnyBoy123, Aug 30, 2017, 3 replies, in forum: General Math

### Find the equation of a tangent line to y = x^2?

1. The problem statement, all variables and given/known data the line goes through (0, 3/2) and is orthogonal to a tangent line to the part of...
Thread by: Helly123, Jul 21, 2017, 11 replies, in forum: Calculus and Beyond Homework

### Shortest distance between a line and a point?

1. The problem statement, all variables and given/known data find the shortest distance from (0,0) to the line passing A(2,3) and B(3,5) 2....
Thread by: Helly123, Jul 20, 2017, 6 replies, in forum: Precalculus Mathematics Homework

### I Using physics to predict the outcome of a roulette wheel

Hey guys! I have been working on this project during some time. First off, do you all think that this is possible? Of course, as we all may know,...
Thread by: borson, Jul 15, 2017, 12 replies, in forum: Classical Physics

### I Fitting a line by minimizing absolute deviation

Hey guys!. I need to use this method of minimization. The procedure to follow is explained here: http://es.tinypic.com/r/35mmtg0/9 However, I do...
Thread by: borson, Jul 7, 2017, 12 replies, in forum: Set Theory, Logic, Probability, Statistics

### Find the max and min value from equation?

1. The problem statement, all variables and given/known data [ATTACH] 2. Relevant equations f ' (x) = 0 --> to find extreme points 3. The...
Thread by: Helly123, Jul 4, 2017, 13 replies, in forum: Precalculus Mathematics Homework

### Find the min and max value from absolute function?

1. The problem statement, all variables and given/known data [ATTACH] 2. Relevant equations f ' (x) = 0 -> to find extreme point 3. The...
Thread by: Helly123, Jul 4, 2017, 17 replies, in forum: Precalculus Mathematics Homework

### Find the total number of subtraction remaining 1111?

1. The problem statement, all variables and given/known data [ATTACH] 2. Relevant equations 3. The attempt at a solution 5 digits minus 4...
Thread by: Helly123, Jul 1, 2017, 6 replies, in forum: Precalculus Mathematics Homework

### Log inside log -- find the x in its max domains?

1. The problem statement, all variables and given/known data [ATTACH] 2. Relevant equations log_2 x = y 2^y = x 3^2^y 3. The attempt at a...
Thread by: Helly123, Jul 1, 2017, 10 replies, in forum: Precalculus Mathematics Homework

### Courses Taking Multivariable calc after AP calc AB

I am going to be a freshman in college and I intend to major in astrophysics. This past year I took AP calculus AB, and I got an A and I believe I...
Thread by: GiantSheeps, Jun 27, 2017, 4 replies, in forum: Academic Guidance
1. The problem statement, all variables and given/known data [ATTACH] 2. Relevant equations $$\log_{x} a \ means \ 10^x = a$$  \log_{x}...